Malicious PDF — malware analysis report

Static analysis result for SHA-256 07c1290aad3296fe…

MALICIOUS

PDF

65.1 KB Created: 2020-12-27 12:05:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 16850ebb166ca05d55939b0eac2fa596 SHA-1: dd0c79b6a9b2c35700a0e566c6597310599269cd SHA-256: 07c1290aad3296fe80c600dc638e256c87d2d30c641fe509afbb8c51adeabefe
156 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains a large number of external links, a technique often used for SEO manipulation or to host phishing lures. The ClamAV detection and ML classifier strongly indicate malicious intent. While no scripts were directly extracted, the PDF structure and embedded URLs suggest it acts as a gateway to malicious content hosted on external sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://trafficel.ru/strik?utm_term=world+marco+polo+map PDF link annotation
    • https://cdn.sqhk.co/gujadozede/hdgeaid/musynx_switch_metacritic.pdfIn PDF document text
    • https://cdn.sqhk.co/pavujakorige/WiePvyx/gomonivudilep.pdfIn PDF document text
    • https://cdn.sqhk.co/bixatavafut/jdngfto/rocket_racing_igniter_wheels.pdfIn PDF document text
    • https://cdn.sqhk.co/xoluxuroku/aYgh0Iz/pedusorojipebuwopelenu.pdfIn PDF document text
    • https://cdn.sqhk.co/fakobijo/WzhiQjg/space_wolf_tactics.pdfIn PDF document text
    • https://sepuvoguzunisam.weebly.com/uploads/1/3/4/4/134488558/d990b8bb0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5be8dcf-8366-4a14-916e-63c5166aa4da/oppo_a33f_flash_file.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2a5e2c7f-d99a-4b77-b11a-6a9eebeb4eb6/31196909307.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1597b27d-43dc-4b91-80ad-71dd84998b8d/15354622722.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20411b6d-ddad-4908-9050-9de9b3d1e5da/volkswagen_repair_manual.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5080d1e8-996c-4f95-8d2b-761ca27c19e6/youtube_fnaf_fan_games.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/driver_booster_6._2_crackeado.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c0d5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC0D5 5052 bytes
SHA-256: e96273b8494055c19734dedfd09687e998e406ce0e6daa978b602a026b0adc46
font_01_sfnt_off0000d1f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD1F8 11180 bytes
SHA-256: 1b284d2824dba3e97915f9e4b09023a60c6f1290995e475f02a7a2a17e89cc8b

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